| http://www.w3.org/ns/prov#value | - Since the mid-1980s, there has been an increasing incidence of invasive infections caused by group A ??-hemolytic streptococcus (GAS).1 Invasive GAS infections are defined by the isolation of GAS from a normally sterile site in the setting of bacteremia without a focus or focal infections with or without bacteremias, including meningitis, pneumonia, peritonitis, puerperal fever, osteomyelitis, sep
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